but in an interview for cbs this morning, iranian president, mahmoud ahmadinejad was impressed by charlie rose did not deny iran had levenson and hinted about a prisoner exchange with the u.s. >> is anything that could happen a trade or something that would allow him to come back to the united states? >> i remember that last year, iranian and american intelligence groups had a meeting, but i haven't followed up on it. i thought they would come to an agreement. >> now in 2007, his wife and son traveled to tehran where officials claim they didn't have information on this missing american. but his admission that there were negotiations is a big step and should give his family renewed hope. at least hope that is the case. >>> this is 9news now. >> fairfax county police searching for answers after a grim and disturbing discovery in herndon. four members of the same family found dead in a home in the 13300 block of point ryder lane. peggy fox is live on the scene where neighbors are in shock. peggy. >> oh, absolutely, derek. the four bodies remain inside the home as detectives continue to colle